December weather forecast
Canby, OR

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Weather in December

December rounds off the year in Canby, Oregon, with cold weather, short days and light snowfall. The temperatures vary from 35.1°F (1.7°C) to 44.2°F (6.8°C), symbolizing the full onset of the winter season. The month boasts higher rainfall, recording 4.49" (114mm) second only to January, with an added sprinkling of snowfall marking both the end and the beginning of the year. The insignificantly shorter daylight hours add to the wintery feel of the month. Thus, December’s weather exhibits a prevailing winter scenario with a mix of rain and snow showers.

Temperature

December, with its high-temperature average of 44.2°F (6.8°C) and a low-temperature average of 34.3°F (1.3°C), is the coldest month.

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 85%.

Rainfall

December is the month with the most rainfall. Rain falls for 19.4 days and accumulates 4.49" (114mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Canby, in December, snow falls for 0.8 days, with typically accumulated 0.47" (12mm) of snow. In Canby, during the entire year, snow falls for 6.1 days and aggregates up to 3.66" (93mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:38 pm PST.

Sunshine

In Canby, the average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

What is the coldest time of year?

December, with an average high of 44.2°F (6.8°C) and a low of 34.3°F (1.3°C), signifies the coldest month of the year.

How cold does it get in December?

The high-temperature, in December, in Canby, records 44.2°F (6.8°C), while the low-temperature is 34.3°F (1.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 84.2°F (29°C).

What are the most humid months?

The months with the highest humidity are January, February and December, with an average relative humidity of 85%.

What is the average humidity in December?

In Canby, the average relative humidity in December is 85%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 19.4 days and accumulates 4.49" (114mm) of precipitation.

How many days does it rain in December?

In Canby, during December, the rain falls for 19.4 days and regularly aggregates up to 4.49" (114mm) of precipitation.

How many days does it snow in December?

In Canby, Oregon, in December, snow falls for 0.8 days, with typically accumulated 0.47" (12mm) of snow.

What is the month with the shortest days in Canby?

With an average of 8h and 48min of daylight, December has the shortest days of the year.

How many hours of daylight does Canby have in December?

In December, the average day length is 8h and 49min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 4:38 pm PST.

How many hours of sunshine does Canby have in December?

In December, the average sunshine duration is 4.3h.

What are the months with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Canby, OR

Average temperature in December - Canby, OR
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

Average pressure in December
Canby, OR

Average pressure in December - Canby, OR
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in December
Canby, OR

Average wind speed in December - Canby, OR
  • Average wind speed in December: 5.3mph

The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in December
Canby, OR

Average humidity in December - Canby, OR
  • Average humidity in December: 85%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).

Average rainfall in December
Canby, OR

Average rainfall in December - Canby, OR
  • Average rainfall in December: 4.49"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").

Average rainfall days in December
Canby, OR

Average rainfall days in December - Canby, OR
  • Average rainfall days in December: 19.4 days

The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).

Average snowfall in December
Canby, OR

Average snowfall in December - Canby, OR
  • Average snowfall in December: 0.47"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Canby, OR

Average snowfall days in December - Canby, OR
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Canby, OR

Average daylight in December / Average sunshine in December - Canby, OR
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in December
Canby, OR

Average sunshine days in December - Canby, OR
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).

Average UV index in December
Canby, OR

Average UV index in December - Canby, OR
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Canby, OR

Average cloud cover in December - Canby, OR
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Canby, OR

Average visibility in December - Canby, OR
  • Average visibility in December: 5mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).

Canby, Oregon, USA

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